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Ιδρυματικό Αποθετήριο [SANDBOX]
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| URI | http://purl.tuc.gr/dl/dias/A15D8045-CA82-465A-A7DF-2B761168C568 | - |
| Αναγνωριστικό | https://doi.org/10.1002/xrs.1141 | - |
| Αναγνωριστικό | https://onlinelibrary.wiley.com/doi/abs/10.1002/xrs.1141 | - |
| Γλώσσα | en | - |
| Μέγεθος | 5 pages | en |
| Τίτλος | Chromium speciation by TXRF analysis | en |
| Δημιουργός | Kallithrakas-Kontos Nikolaos | en |
| Δημιουργός | Καλλιθρακας-Κοντος Νικολαος | el |
| Δημιουργός | Koulouridakis Pavlos | en |
| Δημιουργός | Κουλουριδακης Παυλος | el |
| Δημιουργός | Χατζησταύρος Βασίλειος | el |
| Δημιουργός | Hatzistavros Vasilios | en |
| Δημιουργός | Αρετάκη Ιωάννα | el |
| Δημιουργός | Aretaki Ioanna | en |
| Εκδότης | John Wiley and Sons | en |
| Περίληψη | Chromium (Cr) is an element which usually occurs in two different forms, Cr(III) and Cr(VI). As Cr(VI) is much more toxic than Cr(III), no complicated analytical methods with low detection limit are needed for chromium speciation. In the present work, a new method is presented for chromium speciation at low concentrations by selective membrane collection and total Reflection x-ray fluorescence (TXRF) analysis. Various membranes were produced on the surface of quartz reflectors containing different complexing ligands in Nafion and poly vinyl chloride (PVC) matrices. The membranes were produced on the surface of quartz glass, while the reflectors were immersed in water solutions with low concentrations of chromium salts for many hours. When the equilibration stage was achieved, the reflectors were analyzed by TXRF. Completely selective membranes for Cr(III) and Cr(VI) were prepared with minimum detection limits lower than 0.6 ng.ml−1 (ppb) in drinking water | en |
| Τύπος | Peer-Reviewed Journal Publication | en |
| Τύπος | Δημοσίευση σε Περιοδικό με Κριτές | el |
| Άδεια Χρήσης | http://creativecommons.org/licenses/by/4.0/ | en |
| Ημερομηνία | 2015-10-07 | - |
| Ημερομηνία Δημοσίευσης | 2009 | - |
| Θεματική Κατηγορία | Chromium | en |
| Θεματική Κατηγορία | TXRF analysis | en |
| Βιβλιογραφική Αναφορά | N. Kallithrakas-Kontos, P. Koulouridakis, V. Hatzistavros and I. N. Aretaki, "Chromium speciation by TXRF analysis," X-Ray Spectrom., vol. 38, no. 2, pp. 152–156, Jan. 2009. doi:10.1002/xrs.1141 | en |
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